Smooth skull brush



FIG. 1 is a front perspective view showing our design thereof;

FIG. 2 is a rear perspective view;

FIG. 3 is a top view;

FIG. 4 is a rear view;

FIG. 5 is a left side view; and,

FIG. 6 is a front view thereof. 

CLAIM The ornamental design for smooth skull brush, as shown and described. 